"Sunday's game in Denver may mark the end of the Casey Wiegmann era.Wiegmann, the Chiefs' center, will make his 175th straight start when the team faces the Broncos, and he will add to streak of consecutive snaps that is at 11,102. Both are the longest active streaks among NFL offensive linemen, dating to 2001.Nobody knows whether Wiegmann's consecutive snaps streak is a record; the league does not track such things.His streak of consecutive snaps started Sept. 23, 2001, against the Giants, the first game the Chiefs played after the attacks of Sept. 11"He's one of those guys who comes to work, does his job," said Chiefs running back Thomas Jones. "You know what you're going to get from him."Wiegmann, 38, hasn't decided on whether to return next year."